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BCH543N6 — CHANNEL,GANG

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BCH543N6: CHANNEL,GANG.

The CHANNEL,GANG is a the manufacturer industrial component. Key specifications include overall_width: 0.542 INCHES NOMINAL IN, overall_height: 0.250 INCHES NOMINAL IN, overall_length: 72.000 INCHES NOMINAL IN, special_features: NUT SPACING IS 0.750 IN NOM/INSIDE WIDTH OF CHANNEL IS .345 IN IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-497-2940, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
BCH543N6
NSN: 5340-01-497-2940
FSC: 5340 — Hardware, Commercial
CAGE: 27238 — BRISTOL INDUSTRIES, LLC (USA)
SPECIFICATIONS
overall_width0.542 INCHES NOMINAL IN
overall_height0.250 INCHES NOMINAL IN
overall_length72.000 INCHES NOMINAL IN
special_featuresNUT SPACING IS 0.750 IN NOM/INSIDE WIDTH OF CHANNEL IS .345 IN IN
NSN5340-01-497-2940
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BCH543N6 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.250 INCHES NOMINAL IN
OVERALL LENGTH72.000 INCHES NOMINAL IN
OVERALL WIDTH0.542 INCHES NOMINAL IN
SPECIAL FEATURESNUT SPACING IS 0.750 IN NOM/INSIDE WIDTH OF CHANNEL IS .345 IN IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 2
CN171-3-6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ST3M543N6DReference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BCH543N6?
BCH543N6 is a CHANNEL,GANG.
What parts can replace BCH543N6?
There are 2 known substitutes for BCH543N6: CN171-3-6, ST3M543N6D. Substitute compatibility should be verified for your specific system.
What is the NSN for BCH543N6?
BCH543N6 is cataloged in the U.S. Government catalog under NSN 5340-01-497-2940. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.